Here's a fun one: You can have the entire path display in the title bar at the top of the window if you like, & save the real estate Apple burns with it's Pathbar at the bottom.
In the terminal, enter:
defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES
Hit return, then enter:
killall Finder
hit return again to re-launch the Finder.
It's not as functional as the pathbar -- i.e. you can't click on enclosing folders to go the them, or drag things onto them, but it's a compact way of displaying where you are in the hierarchy.
Edit: if you don't like it, just replace YES with NO to revert to the regular mode.